I believe they did that on the leaked fw as the rootfs jumps up remarkably but what IF his assumptions are fact, if you look at the chaos surrounding the 900 it is never ending from the hardware right down to the actual fact it has been offered as a first device ever with open development, that along with the huge headaches has got Nokia very quiet indeed and then all of a sudden out of the blue comes a "leaked" fw. It is all very suspicious whichever way you look at it and one thing for sure is the usb problem, that will mean a new design so all in all we could very well be looking at the end of the N900 very soon as it will be the modern day zx81 that everyone loves to play with that does not need any more support for the very reason it already has a sufficient os that anyone can develop for.
Hmmmmm food for thought aye.